Candlestick-lubricator.



E. L. PAUL. GANDLESTICK LUBRIGATOR.

APYLIGATION FILED HAIR. 22, 1910.

-MMW

Patented May 26, 1914.

rrnn STATES PATENT OFFICE.

EDWIN L. FAUL, OF NEWV YORK, N. Y., ASSIGNOR TO WILLIAM J. FAUL 00., OFNEW YORK, N. Y., A CORPORATION OLE NEiV YORK.

CANDLESTICK-LUBRICATOR.

Specification of Letters Patent.

Application filed March 22, 1910.

Patented May 26, 1914.

Serial No. 550,970.

To all whom it may concern Be it known that I, EDWIN L. FAUL, a citizenof the United States, and a resident of the city of New York, borough ofBrook lyn, county of Kings, and State of New York, have invented certainnew and useful Improvements in Candlestick Lubricators, of which thefollowing is a full, clear, and exact specification, reference being hadto the accompanying drawing, wherein- Figure 1 is a front elevation andFig. 2 a cross-sectional view of a pulley with my improved candlesticklubricator set in position; Fig. 3 is a detail view, showing theflexible stem in elevation, and a sectional view of the perforatedplunger mounted thereon.

My invention relates to lubricating devices and consists of thehereinafter more fully described construction of a candlesticklubricator, designed with the particular object in view, to enablecandlestick lubricators of a desirable length to be used on smallpulleys, and to permit convenient refilling of the tube when thecandlestick is exhausted. This tube a is usually screw-threaded at itslower end, as shown at a, to enable its being screwed into, and securelyheld in, the hub b of the pulley. The bore 0 in the hub b of the pulleyis recessed at cl, the rim of the tube a abutting against the shoulder(Z, to prevent the tube from coming in contact with the shaft 6 whereonthe pulley is mounted. The upper end of the tube is also screw-threaded,as shown at (E, and the enlarged interior of the cap f is screw-threadedcorrespondingly, to enable the cap ,1 to be screwed thereon and heldsecurely in connection therewith. The interior of the cap f extends fora suitable distance above the recessed enlarged portion, and ispreferably made of the same diameter as the interior of the tube a. Theupper rim of the tube a abuts against the annular shoulder f, formed bythe enlarged screw-threaded portion of the cap.

The narrower and smooth portion 9 of the interior of the cap serves forhousing the plunger p and spring h, which are slidable on rod z',between the knob and the head of the cap. By means of this rod 2' theplunger 20 is withdrawn from the tube a and into the cap 1 when the tubea is to be refilled With lubricant. The housing of the plunger 10 andspring h in the cap f is necessary to prevent an excessive compressingof the spring and the jamming of these parts. l/Vhen filling orrefilling the tube a, the oiler inserts a stick Z of tallow or otherlubricant, termed a candlestick, pushing it into the tube a as far as itwill go, and then cuts it off even with the upper rim of the tube. Ifthe cavity or recess g were not provided in the interior of the cap f,the screwing on of the cap would not only be very diiiicult, but alsowould result in so compressing the spring it, that its elasticity mightbe thereby destroyed. The parts would also be liable to be jammed, sothat the proper and eflicient operation of the de vice would beimpaired.

Heretofore it was not feasible to use candlestick lubricators for smallpulleys, because their rigid plunger rods cannot be accommodated withinthe confined space, between the hub and the rim of the pulley, when theplunger is drawn up, as it must be on re-charging the lubricator withthe lubricant, unless the tube is only partly filled. This necessitatesso much more frequent refilling of the tube, that it renders the use ofsuch candlestick lubricators impracticablle. Candlestick lubricators aremuch more preferable to oil cups, and the like devices, and their use onrotating pulleys is very desirable, particularly in view of the fact,that oil cups are not considered as efiicient for lubricating rotatingpulleys, because the oil is forced outward by the centrifugal force. Toenable candlestick lubricators to be used also on pulleys of smallersize, I employ, in my improved lubricator, a flexible, highly elastic,spring-like rod '5 for the stem of the plunger 79. This rod ispreferably made as shown in Fig. 8, of a tightly wound steel wire, so itmay be stowed underneath the inner surface of the rim of the pulley, asshown in Figs. 1 and 2, when the tube a is filled with a fresh charge ofthe lubricant (candlestick Z), the plunger 79 and the spring h beingthen withdrawn into the recess of the cap. The employing of thisspring-like rod in the construction of the lubricator, enables me to usea tube nearly as long as the space between the hub and. the rim of thepulley, so that a lubricator, made according to my invention, does notrequire any more frequent re-filling of the tube than those used inother places, and my invention thus obviates the defect which heretoforeprevented the use of such candlestick lubricators on small pulleys. Thecap f may be screwed onto the tube a, while the rod 2' is bent, as shownin Figs. 1 and 2, the aperture 0 in the cap through which the rod '11passes into the interior of the lubricator, being made sufficientlylarge, and having its edges rounded, as shown in the drawing, to enablethis to be done readily and conveniently; there is no friction betweenthese parts, the rod 2' and the aperture 0 becoming well greased whenthe lubricator is in use.

lVhen installing a. candlestick lubricator, constructed according to myinvention, the tube a is screwed into the bore 0 of the hub b of thepulley, the candlestick Z is inserted into it, and then the cap 2 is setthereon, the plunger 79 and the spring 71, being withdrawn into theinterior portion 9 of the cap. The part of the plunger p, projectingabove the cap, is bent, and slid underneath the rim of the pulley, andwhile it is held in that posi tion with one hand the cap fmay be screwedonto the tube a with the other hand. The rod 2' is drawn into the tube aby the spring 72,, pressing the plunger upon the candlestick, as thecandlestick is being gradually consumed, and being highly elastic, likea spring, straightens out again, after being bent as explained, and isthus also capable of performing the function of assisting in guiding theplunger ya so as to avoid its being tipped, 0r jammed in the tube. Therod 2' may also be pushed in, into the tube, after the cap f is screwedon, for which purpose an aperture 9 is provided in the plunger 2), andthe latter slidably mounted on the rod, as shown in the enlarged detailin Fig. 8. Neither the pushing of the rod 2' into the tube, nor theleaving it in such bent position, interferes with the operation of thedevice. In either instance the spring it acts on the plunger, pressingthe lower end of the candle stick 1 constantly in close contact with theshaft 6, which is to be lubri cated, and the rod 1' assists in guidingthe plunger to the same extent as otherwise.

I claim as my invention:

A candlestick lubricator, com-prising a tube having one end adapted tobe secured in the hub of pulley; a perforated cap secured on the otherend of the tube; a plunger in the tube, a coiled wire rod, connectedtherewith, and journaled in the perforation of the tube, and a coiledspring, set between the plunger and the cap; substantially as hereinshown and described.

EDWVIN L. FAUL.

Vitnesses VERONICA BRAUN, Aomas F. MADDEN.

Copies of this patent may be obtained for five cents each, by addressingthe commissioner of Patents, Washington, 1). G.

